- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04315597
Study to Learn About Relapse Prevention of Hypericumextract (a Drug Based on the Plant St. John Wort) in Outpatients Suffering From Moderate Depressive Episodes
Doubleblind, Randomized, Placebo-controlled, Multicenter Clinical Study to Investigate Relaps-prevention by Hypericumextract in Outpatients With Moderate Depressive Episodes (Major Depression)
The researchers in this trial want to learn more about the drug Laif® 900 in preventing the return of signs and symptoms of depressions (also called relapse) in patients suffering from moderate depression episodes. The study drug Laif® 900 is based on Hypericumextract made from the plant St. John wort. Patients will be accepted to take part in the study if they have 20-24 points on the Hamilton Depression Rating Scale (HAM-D) which is a questionnaire helping the doctor to rate the severity of the depression and includes questions on patient's mood, sleep difficulties, agitation, anxiety and weight loss. About 400 patients will be enrolled into the first part of the study and will be treated for 12 weeks with Laif® 900 capsule once daily. Only patients with an improved HAM-D score by 50% will stay in the study and continue with the second part of the study which will last for 24 weeks.
In this second part of the study patients will receive either Laif® 900 capsule once daily or an inactive tablet (placebo). Neither the treating doctor nor the patient will know which patient receives the Laif® 900 or placebo. At the end of the study the researcher will assess the effectiveness of the study drug in prevention relapse of depression episodes and will also have more information on the safety of the study drug.
Study Overview
Status
Intervention / Treatment
Study Type
Enrollment (Actual)
Phase
- Phase 3
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
Study Phase 1:
- Age 18-70 years
- Diagnosis according to DSM-IV-TR: 296.32: Outpatients with a mediocre depressive episode requiring treatment for recurrent major depression
- At least 5 of the following symptoms must persist for 2 weeks, with at least one of the main symptoms:
- Depressed mood (main symptom)
- Loss of interest or pleasure (main symptom)
- Significant weight loss without diet or weight gain
- Increased sleep or insomnia
- Psychomotor restlessness or slowing down
- Excessive, inappropriate guilt or feelings of worthlessness on almost every day
- Subjective or observable diminished ability to think and to decide
- Fatigue and loss of energy
- Suicidal thoughts and / or actions
Study Phase 2:
- Phase 1 responders (= Phase 1 patients who have at least a 50% decrease in the HAMD-17 total score after 12 weeks of Laif® 900 therapy).
Exclusion Criteria: General (phase 1 and phase 2)
- Unable to work and patients cared for according to the BtG (working group "Stay") and "Medical Measures")
- Simple mourning reaction
- Clinically relevant laboratory abnormalities due to severe organ and systemic diseases
- Taking immunosuppressants (eg after organ transplants)
- Taking oral contraceptives with low levels of hormones (estrogen ≤ 50 μg, micropillus)
- Thyroid dysfunction (patients with non-euthyroid TSH levels)
- Known intolerance to the test medication
- Known photosensitivity
- Diabetes mellitus type I and II requiring treatment
- Unstable hypertension
- Pregnancy or breastfeeding
- Cancer and AIDS patients (HIV-positive)
- Alcohol, drug or drug abuse in the last 6 months
- Coadministration with coumarin-type anticoagulants
- History of epilepsy
- Melanoma
- Specific psychotherapy in the last 2 months and during the clinical trial
- Participation in a clinical trial within the last 30 days
- Simultaneous participation in another clinical trial
- Compliance and protocol management are not guaranteed by language problems
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Triple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Placebo Comparator: Placebo
|
1 x daily, 1 tablet, 900 mg
|
Experimental: Hypericum extract STW 3-VI (Laif® 900, BAY98-7108)
|
1 x daily, 1 tablet, 900 mg
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Relapse rate
Time Frame: 24 weeks
|
Definition: Increase of the Hamilton rating scale for depression (HAMD)-17 total score in Phase 2 by > 5 points compared to Phase 2 baseline, if at the same time a total score of at least 12 is reached.
|
24 weeks
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Time between baseline and occurrence of relaps measured by: Total score of HAMD-17
Time Frame: 24 weeks
|
24 weeks
|
|
Time between baseline and occurrence of relaps measured by: Beck Depression Inventory (BDI)
Time Frame: 24 weeks
|
24 weeks
|
|
Time between baseline and occurrence of relaps measured by: Clinical Global Impressions (CGI)
Time Frame: 24 weeks
|
24 weeks
|
|
Global assessment of efficacy by investigators and patients
Time Frame: 12 and 24 weeks
|
% of investigators and patients, respectively, who rated the efficacy "very good" or "good", respectively.
|
12 and 24 weeks
|
Safety and Tolerability: Number of Adverse Events
Time Frame: 36 weeks
|
36 weeks
|
Collaborators and Investigators
Sponsor
Collaborators
Publications and helpful links
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 20997 (REGISTRY: Peruvian Clinical Trial Registry (REPEC))
- 2008-001417-26 (EudraCT Number)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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